Many electronic end-equipment such as PCs, media players, point of sales registers, printers, cameras, headphones, smartphones, tablets, and so forth use USB ports (such as USB Type-A, USB Type-B, or USB Type-C™) for in-field or factory debug interface. In such use cases debug signals are routed to USB 2.0 pins of a USB port through a mux or demux device. TMUXHS221LV is a good fit for such use cases with its flexible data handling capability. TMUXHS221LV can handle virtually any debug interface signals as long as they are limited to −0.3 V (minimum) to 3.6 V (maximum). The device also provides very low attenuation to both USB 2.0 and debug signals with its very low channel ON resistance, high bandwidth, and low reflection.

Figure 8-1 shows a system implementation where USB 2.0 signals are multiplexed with debug interface signals into DP/DM wires of a USB port.

Figure 8-1 Routing Debug Signals to USB Port